Home / 31,344.78-47,296.68-30,129.78

Finding the Fourth Proportional to 31,344.78, 47,296.68 and 30,129.78

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Solution

The fourth proportional to 31,344.78, 47,296.68 and 30,129.78 is: 45,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,344.78 : 47,296.68 = 30,129.78 : x
  2. Step 2: Convert to fraction form
    31,344.78/47,296.68 = 30,129.78/x
  3. Step 3: Cross multiply
    31,344.78x = 47,296.68 × 30,129.78
  4. Step 4: Simplify right side
    31,344.78x = 1,425,038,563.13
  5. Step 5: Solve for x
    x = 1,425,038,563.13/31,344.78
  6. Step 6: Final answer
    x = 45,463.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.